chore(vscode): configure search exclusions (#1165)

## 🧰 Changes

when pairing with @emilyskuo we noticed a handful of directories/files
that i had configured myself but didn't configure for the repo writ
large. figured all vscode users could benefit from this config.

## 🧬 QA & Testing

do the search results properly exclude certain directories/files?

.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+  "editor.defaultFormatter": "esbenp.prettier-vscode",
+  "search.exclude": {
+    "**/dist-gha": true,
+    "CHANGELOG.md": true,
+    "package-lock.json": true
+  }
+}